Home / 143,144.47-197,545.40-79,488.19

Finding the Fourth Proportional to 143,144.47, 197,545.40 and 79,488.19

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Solution

The fourth proportional to 143,144.47, 197,545.40 and 79,488.19 is: 109,697.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,144.47 : 197,545.40 = 79,488.19 : x
  2. Step 2: Convert to fraction form
    143,144.47/197,545.40 = 79,488.19/x
  3. Step 3: Cross multiply
    143,144.47x = 197,545.40 × 79,488.19
  4. Step 4: Simplify right side
    143,144.47x = 15,702,526,288.83
  5. Step 5: Solve for x
    x = 15,702,526,288.83/143,144.47
  6. Step 6: Final answer
    x = 109,697.05

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.